A data storage device that is composed of a disk of thin, flexible (�floppy�) magnetic storage medium encased in a square or rectangular plastic shell.
(Random Access Memory) is the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer�s processor.
(Internet Service Provider) In order to connect to the Internet, you need an ISP. It is the company that you pay a monthly fee to in order to use the Internet.
(from modulate and demodulate) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information.
The degree to which a system, subsystem, or equipment is operable and in a committable state at the start of a mission, when the mission is called for at an unknown, i.e., a random, time.
� A form of disk storage that hosts files within a network; file servers do not need to be high-end but must have enough disk space to incorporate a large amount of data.
A device that extracts the destination of a packet it receives, selects the best path to that destination, and forwards data packets to the next device along this path.
serves information to computers that connect to it. When users connect to a server, they can access programs, files, and other information from the server.
(Internet Service Provider) In order to connect to the Internet, you need an ISP. It is the company that you (or your parents) pay a monthly fee to in order to use the Internet.
Base-16, or simply hex, is a numeral system with a radix, or base, of 16, usually written using the symbols 0�9 and A�F, or a�f. Its primary purpose is to represent the binary code in a format easier for humans to read, and acts as a form of shorthand, in which one hexadecimal digit stands in place of four binary bits.
(American Standard Code for Information Interchange) is a character encoding based on the English alphabet. ASCII codes represent text in computers, communications equipment, and other devices that work with text.
Term used to describe networks that are open to equal access to all . They are non-discriminatory as they do not favor any one destination or application over another.
Short for Web log, a blog is a Web page that serves as a publicly accessible personal journal for an individual. Typically updated daily, blogs often reflect the personality of the author.
A collaborative Web site comprises the perpetual collective work of many authors. Similar to a blog in structure and logic, a wiki allows anyone to edit, delete or modify content that has been placed on the Web site using a browser interface, including the work of previous authors.
Short for File Allocation Table, FAT is a method used by Microsoft operating systems to keep track of the contents of a disk; the table is a chart of numbers that correspond to cluster addresses on the hard drive.
Stands for "New Technology File System." NTFS is a file system introduced by Microsoft with Windows NT and is supported by subsequent versions of Windows, such as Windows 2000 and Windows XP.
The IDE keeps track of all files related to a project and provides a central interface for writing source code, linking files together, and debugging the software.
is software that creates a virtualized environment between the computer platform and its operating system, so that the end user can operate software on an abstract machine.
(Virtual Private Network)a network that is connected to the Internet, but uses encryption to scramble all the data sent through the Internet so the entire network is "virtually" private.
a chronological sequence of audit records, each of which contains evidence directly pertaining to and resulting from the execution of a business process or system function.
a programming error which may result in a memory access exception and program termination, or in the event of the user being malicious, a possible breach of system security.
is the process of transforming information (referred to as plaintext) to make it unreadable to anyone except those possessing special knowledge, usually referred to as a key.
(Concurrent Versions System) An open-source version control system that keeps track of all work and all changes in a set of files, typically the implementation of a software project, and allows several (potentially widely-separated) developers to collaborate.
(Peer To Peer) "Peers" are computer systems which are connected to each other via the Internet. Files can be shared directly between systems on the network without the need of a central server.
(National LambdaRail) A high-speed national computer network in the United States that runs over fiber-optic lines, and is the first transcontinental Ethernet network.
When computers communicate with each other, there needs to be a common set of rules and instructions that each computer follows. A specific set of communication rules is called a protocol.
(Transmission Control Protocol/Internet Protocol) The purpose was to allow computers to communicate over long distance networks.TCP/IP has since then become the foundation of the Internet.
(Domain Name System) Associates various sorts of information with so-called domain names; most importantly, it serves as the "phone book" for the Internet by translating human-readable computer hostnames into the IP addresses.
Coordinated set of glyphs designed with stylistic unity. It usually comprises an alphabet of letters, numerals, and punctuation marks; it may also include ideograms and symbols, or consist entirely of them, for example, mathematical or map-making symbols.
Typefaces in which every glyph is the same width (as opposed to variable-width fonts, where the "w" and "m" are wider than most letters, and the "i" is narrower).
In computer software, any symbol that requires one byte of storage. This includes all the ASCII and extended ASCII characters, including the space character.
Also known as a solidus, virgule, or whack, the forward slash is the name of the "/" character on the computer keyboard.
At sign
(@, read aloud in English as "at") is a typographic symbol used as an abbreviation for "at". The at symbol has become ubiquitous because of its use in e-mail addresses.
Short for radio frequency, any frequency within the electromagnetic spectrum associated with radio wave propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that then is able to propagate through space. Many wireless technologies are based on RF field propagation.
Used typically in reference to a computer language to mean a command or statement in the language that is going to be made invalid or obsolete in future versions.
A DTD is primarily used for the expression of a schema via a set of declarations that conform to a particular markup syntax and that describe a class, or type, of SGML or XML documents, in terms of constraints on the structure of those documents.
In web page design, and generally for all markup languages such as SGML, HTML, and XML, a well-formed element is one that is either: opened and subsequently closed, an empty element, which in that case must be terminated, or properly nested so that it does not overlap.
Cascading style sheets are used to format the layout of Web pages. They can be used to define text styles, table sizes, and other aspects of Web pages that previously could only be defined in a page's HTML.
Developed to assist in the transition from earlier versions of HTML (including HTML 3.2). The Transitional and Frameset variants allow for presentational markup.
The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web (abbreviated WWW or W3). It is arranged as a consortium where member organizations maintain full-time staff for the purpose of working together in the development of standards for the W3.
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